Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: GNU General Public License 

public class Main {
    public static String getFileExt(String url) {
        if (url.indexOf("?") > -1) {
            url = url.substring(0, url.indexOf("?"));
        }
        if (url.lastIndexOf(".") == -1) {
            return null;
        } else {
            String ext = url.substring(url.lastIndexOf("."));
            if (ext.indexOf("%") > -1) {
                ext = ext.substring(0, ext.indexOf("%"));
            }
            if (ext.indexOf("/") > -1) {
                ext = ext.substring(0, ext.indexOf("/"));
            }
            return ext.toLowerCase();

        }
    }
}